Refactor: Implement DashboardLayout, fix mobile nav, and resolve scroll issues

app/providers.tsx

@@ -1,6 +1,7 @@
 "use client";
 
 import { createContext, useContext, useState, ReactNode } from "react";
+import { DataSync } from "@/components/DataSync";
 
 interface SidebarContextType {
   isOpen: boolean;
@@ -27,6 +28,7 @@ export function Providers({ children }: { children: ReactNode }) {
         open: openSidebar,
       }}
     >
+      <DataSync />
       {children}
     </SidebarContext.Provider>
   );